Picnic backpack



FIG. 1 is a perspective view of a picnic backpack, showing my new design in a closed configuration;

FIG. 2 is a front elevational view of FIG. 1;

FIG. 3 is a rear elevational view of FIG. 1;

FIG. 4 is a left-side elevational view of FIG. 1;

FIG. 5 is a right-side elevational view of FIG. 1;

FIG. 6 is a top plan view of FIG. 1;

FIG. 7 is a bottom plan view of FIG. 1;

FIG. 8 is a perspective view thereof, illustrated in an open configuration;

FIG. 9 is a front elevational view of FIG. 8;

FIG. 10 is a rear elevational view of FIG. 8;

FIG. 11 is a left-side elevational view of FIG. 8;

FIG. 12 is a right-side elevational view of FIG. 8; and,

FIG. 13 is a top plan view of FIG. 8.

The dash-dot broken lines illustrate the boundaries of the claimed design, and form no part of the claimed design. The dash-dash broken lines illustrating the handle form no part of the claimed design. The remaining dash-dash broken lines depict stitching that does form part of the claimed design. 

CLAIM The ornamental design for a picnic backpack, as shown and described. 